Novel N-(1-(4-(dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)-1-oxo-3-phenylpropan-2-yl derivatives were designed, synthesized and their chemical structures were confirmed by ¹H NMR, ¹³C NMR and Mass spectra. The anticancer activities of the newly synthesized compounds were evaluated in vitro against three human cancer cell lines including K562, Colo-205 and MDA-MB 231 by MTT assay. The screening results showed that five compounds (16b, 16d, 16i, 16p and 16q) exhibited potent cytotoxic activities with IC₅₀ values between 20 and 40 μM. Further in vitro studies revealed that inhibition of sirtuins could be the possible mechanism of action of these molecules.

设计，合成了新型的N-（1-（4-（二苯并[ b，f ] [1,4]噻嗪pin-11-基）哌嗪-1-基）-1-氧代-3-苯基丙烷-2-基衍生物并通过¹ H NMR，¹³ C NMR和质谱证实了它们的化学结构，并通过MTT法体外评估了新合成的化合物对三种人类癌细胞株K562，Colo-205和MDA-MB 231的抗癌活性。筛选结果表明，5种化合物（16b，16d，16i，16p和16q）表现出强烈的细胞毒性活性，IC _50为50。值介于20和40μM之间。进一步的体外研究表明，抑制沉默调节蛋白可能是这些分子起作用的可能机制。